[Supras] (UPDATE) Idle issue after installing lexus AFM.

Thu May 17 23:15:47 CDT 2007

Nonono..dont remove it, it'll make things at idle worse.

On 5/17/07, Harley <CoolGuyHB at socal.rr.com> wrote:
>
>  I'll try removing the honeycomb as i remembering leaving it in. I thought
> that was why the honeycomb was there for, to streighten out the air flow?
> I'll try removing it and seeing if that helps. My buddy, who sold me the
> AFM, told me that he had to go through quite a bit of filters to find which
> one would work with the Lexus AFM. He was having the same problems I was. He
> ended up buying a 170 dollar air filter which helped him. Can't remember
> which filter he went with. I got my AEM for like 50 if i recall correctly. I
> was using cheap autozone filters for my OEM AFM, which worked fine. But this
> AFM is touchy.
>
> Thanks again! I'll take off the honeycomb when i get home from work and
> i'll post results.
>
> - Harley(87t)
>
> ----- Original Message -----
> *From:* Jeff Mohler <speedtoys.racing at gmail.com>
> *To:* Harley <CoolGuyHB at socal.rr.com>
> *Cc:* supras at supras.com
> *Sent:* Thursday, May 17, 2007 7:13 PM
> *Subject:* Re: [Supras] (UPDATE) Idle issue after installing lexus AFM.
>
> Wow..awesome.
>
> But..its not the AFMs fault, the common high flow air filters
> dont..hmm..how do I say.."straighten" out the airflow if the air around it
> is turbulent to let ANY AFM get a nice stable solid reading.
>
> Remove the honeycomb in front of the AFM (if you have not already) for a
> dramatic example of this and how your car idles.
>
> The lexus housing is larger, which slowwwwsss dowwwnnn the airflow
> compared to a stock AFM body, and this contributes to an uneven non-laminar
> airflow across the sensor. (which is how the ECU sees "less" air to promote
> a higher boost fuel cut)
>
> Again, welcome to the world of a thousand shades for grey.  Doing it all
> the right way costs more, but ask anyone..like say Malik..what a rebuild is
> costing him.  Blowing things up at only 350Hp aint go grey area, thats cold
> hard black & white catching up to ya.
>
>
>
> On 5/17/07, Harley <CoolGuyHB at socal.rr.com> wrote:
> >
> > So.. I was goofing around under the hood today. The car had a rough idle
> > like i have been describing. When i closed the hood the idle would drop and
> > rise drop and rise and continue but never dies out. When I open the hood it
> > normals out. Idle still a little rough but it stops rising and dropping. I
> > repeatedly opened and closed the hood for my own amusement for a while then
> > i left it open and sat there scratching my head. I am missing the fan
> > shroud... Could it be that the fan is pulling air away from the filter and
> > causing the tempermental Lexuz AFM to throw off the idle? I was amazed how
> > opening and closing the hood was making such a huge difference.
> >
> > Which brings me to this... Does someone have a spare fan shround that is
> > in great condition that they would be willing to sell to me for cheap. Or
> > does anyone have the electric fan setup they would be willing to sell?
> >
> > - Harley(87t)
> >   ----- Original Message -----
> >   From: b2nice84 at aol.com
> >   To: millenia2000 at hotmail.com ; CoolGuyHB at socal.rr.com ;
> > supras at supras.com
> >   Sent: Wednesday, May 16, 2007 4:05 PM
> >   Subject: Re: [Supras] Idle issue after installing lexus AFM.
> >
> >
> >   Remember it has to come form this RX-7.  This information was found on
> > the Tech Center of our beloved www.supras.com writen by: Adam Hingten.
> >
> >   "This injector was used in only one OEM application that I know of:
> > the first half of the '87 model year of the Mazda RX-7 Turbo II. This makes
> > this injector a little hard to find. After the first half of the '87 model
> > year, Mazda moved to high impedance 550s for the Turbo II and high impedance
> > 450cc for the NA RX-7."
> >
> >   Here is your link
> >   http://www.supras.com/06/techcenter/display.php?QID=21
> >
> >
> >   -----Original Message-----
> >   From: millenia2000 at hotmail.com
> >   To: CoolGuyHB at socal.rr.com; supras at supras.com; b2nice84 at aol.com
> >   Sent: Wed, 16 May 2007 3:46 PM
> >   Subject: Re: [Supras] Idle issue after installing lexus AFM.
> >
> >
> >   I might be able to source some rx-7 injectors for you as most of my
> > friends drive them and a couple work on them.
> >
> >   ----- Original Message -----
> >   From: <b2nice84 at aol.com>
> >   To: <CoolGuyHB at socal.rr.com>; < supras at supras.com>
> >   Sent: Wednesday, May 16, 2007 5:31 PM
> >   Subject: Re: [Supras] Idle issue after installing lexus AFM.
> >
> >   > Here you go buddy.
> >   >
> >   >
> > http://cgi.ebay.com/ebaymotors/PTE-550CC-LUCAS-INJECTORS-TOYOTA-SUPRA-MKIII-TURBO-NEW_W0QQcmdZViewItemQQcategoryZ33554QQihZ008QQitemZ180115868955QQrdZ1QQsspagenameZWDVW
> >   >
> >   > The evel eBay price.
> >   >
> >   > Not too bad. or you can hunt down the RX-7 turbo 550cc injectors for
> > > direct plug in with low impedence but good luck finding three RX-7 turbos
> > > in the junk yard with these injectors.
> >   > -----Original Message-----
> >   > From: CoolGuyHB at socal.rr.com
> >   > To: supras at supras.com
> >   > Sent: Wed, 16 May 2007 2:05 PM
> >   > Subject: Re: [Supras] Idle issue after installing lexus AFM.
> >   >
> >   >
> >   > I didn't install 550s. I just hooked the AFM up. It allows me to
> > boost
> >   > higher as it eliminates the boost cut. Anyone know how much a set of
> > 550s
> >   > would cost me. Or would I even be able to use them with out a an
> > AFC?
> >   >
> >   > Here are my mods:
> >   >
> >   > AEM Air filter
> >   > Cooleez intake(replaced the accordian hose)
> >   > BIC 3" DP
> >   > Magnaflow highflow cat
> >   > 3" wickedflow muffler
> >   > Greddy B-Spec Profec-II Boost controller
> >   > ACT 4puck clutch
> >   >
> >   > ...as far as the rest of the motor goes, its all stock
> >   >
> >   > should i try replacing the fuel filter? I don't think it has ever
> > been
> >   > replaced and it has a rough start in the mornings which is normally
> > a sign
> >   > of a clogged fuel filter. At least with my experience.
> >   >
> >   > - Harley(87t)
> >   > ----- Original Message ----- > From: "Wade Tobin" <
> > wwt3198 at yahoo.com>
> >   > To: <supras at supras.com>
> >   > Sent: Wednesday, May 16, 2007 2:35 AM
> >   > Subject: Re: [Supras] Idle issue after installing lexus AFM.
> >   >
> >   >
> >   >> What are your mods? Generally, 550s should be used in conjunction
> > with
> >   >> the Lexus. Or you could go the RRFPR or FPR route with a AFC using
> > the
> >   >> stock 440s. 440cc injectors are NOT recommended with the Lexus
> > unless
> >   >> alone. I run a Walbro, RC 550s, SAFC, Aeromotive 1:1 w/ the base
> > set to
> >   >> 43.5psi on my 7m MK2. With out the proper fuel upgrades, the Lexus
> > AFM
> >   >> will lean the A/F ratio out causing detonation and ultimately a
> > blown
> >   >> motor.
> >   >>
> >   >> Harley <CoolGuyHB at socal.rr.com> wrote: My buddy sold me a Lexus AFM
> > and
> >   >> ever since I installed it the car wants to die during idle. It
> > never
> >   >> actually dies during idle but it realy wants to. Sometimes while
> > coming
> >   >> off an off ramp it will die when I put in the clutch. After it
> > warms up >> it
> >   >> will streighten out but then it misses a little during idle. Is
> > there
> >   >> anything else I have to do after installing the Lexus AFM?
> >   >>
> >   >> - Harley(87t)
> >   >> _______________________________________________
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> >   >>
> >   >>
> >   >>
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> >   >>
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> > 5/15/2007
> >   >> 10:47 AM
> >   >>
> >   >>
> >   >
> >   >
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